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1. (WO2009028348) METHOD FOR POLARIZING LAMINATED PIEZOELECTRIC/ELECTROSTRICTIVE ELEMENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2009/028348 International Application No.: PCT/JP2008/064726
Publication Date: 05.03.2009 International Filing Date: 19.08.2008
Chapter 2 Demand Filed: 24.06.2009
IPC:
H01L 41/187 (2006.01) ,H01L 41/257 (2013.01) ,H02N 2/00 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41
Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
16
Selection of materials
18
for piezo-electric or electrostrictive elements
187
Ceramic compositions
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41
Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
22
Processes or apparatus specially adapted for the assembly, manufacture or treatment of piezo-electric or electrostrictive devices or of parts thereof
253
Treating devices or parts thereof to modify a piezo-electric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
257
by polarising
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
N
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2
Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
Applicants:
日本碍子株式会社 NGK INSULATORS, LTD. [JP/JP]; 〒4678530 愛知県名古屋市瑞穂区須田町2番56号 Aichi 2-56, Suda-cho, Mizuho-ku, Nagoya-shi, Aichi 4678530, JP (AllExceptUS)
山田 智裕 YAMADA, Tomohiro [JP/JP]; JP (UsOnly)
谷 信 TANI, Makoto [JP/JP]; JP (UsOnly)
Inventors:
山田 智裕 YAMADA, Tomohiro; JP
谷 信 TANI, Makoto; JP
Agent:
渡邉 一平 WATANABE, Kazuhira; 〒1110053 東京都台東区浅草橋3丁目20番18号 第8菊星タワービル3階 Tokyo 3rd Fl., No.8 Kikuboshi Tower Building 20-18, Asakusabashi 3-chome Taito-ku, Tokyo 1110053, JP
Priority Data:
2007-21983827.08.2007JP
Title (EN) METHOD FOR POLARIZING LAMINATED PIEZOELECTRIC/ELECTROSTRICTIVE ELEMENT
(FR) PROCÉDÉ POUR POLARISER UN ÉLÉMENT PIÉZOÉLECTRIQUE/ÉLECTROSTRICTIF STRATIFIÉ
(JA) 積層型圧電/電歪素子の分極処理方法
Abstract:
(EN) Generation of cracks at a dividing section of a driving electrode layer is eliminated by shifting timings of applying polarization voltages to driving electrode layers divided into two, and fluctuation of resonance frequencies of polarized laminated piezoelectric/electrostrictive elements is suppressed to be small.
(FR) L'invention concerne l'élimination de la génération de fissures à une section de division d'une couche d'électrode de commande par décalages de temporisations d'application de tensions de polarisation à des couches d'électrode de commande divisées en deux, et la suppression de fluctuation de fréquences de résonance d'éléments piézoélectriques/électrostrictifs stratifiés polarisés, de telle sorte que la fluctuation soit faible.
(JA)  二分割された駆動電極層に分極電圧を印加するタイミングを互いに時間的にずらすことにより、駆動電極層の分割部での亀裂の発生を防止し、分極処理された積層型圧電/電歪素子の共振周波数の個体ばらつきを小さく抑えられる。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
JPWO2009028348JP5313904